Genetic Analysis of Morpho-Physiological Characteristics of Sunflower Under Stress and Non-Stress Drought Conditions

Aghdam, Mehdi Zohdi; Kojouri, Farrokh Darvish; Ghaffari, Mehdi; Ebrahimi, Asa

doi:10.17503/agrivita.v41i3.2159

Cited by 3 publications

(2 citation statements)

References 28 publications

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“…Significant but negative GCA and SCA effects were useful for DF, DM & PH by decreasing maturity time to escape from drought and short stature to avoid from lodging (Khan et al, 2008;Ghaffari et al, 2011;Aleem et al, 2015). Significantly positive GCA and SCA effects were useful for NL/P, HD (Ahmad et al, 2012), SG (Manzoor et al, 2016;Hussain et al, 2017), AY/P (Ahmad et al, 2012;Din et al, 2014;Imran et al, 2014) and TAW (Aghdam et al, 2019) to enhanced to the productivity of sunflower. Non-significant hybrids were not beneficial under normal and drought stress conditions.…”

Section: Discussionmentioning

confidence: 99%

Gene action of achene yield traits in sunflower under drought stress condition

Hasan¹

2021

PAKJAS

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Drought is one of the most damaging environmental stresses, which decreases the achene yield of sunflower (Helianthus annuus L.). The objectives of our experimentations were to determine the type of gene action in sunflower under drought stress, for the identification of the lines with higher achene yield for purpose of developing hybrid with higher achene yield. Thirty-two single cross hybrids from 12 inbred lines were developed through line × tester mating design through crossing 8 drought tolerant inbred lines with 4 drought susceptible lines. The evaluation experiment was performed under an alpha (0,1) lattice incomplete block design with three replications. The achene yield related traits like DF, DM, PH, NL/P, HD, SG, AY/P and TAW were evaluated under normal irrigation and drought stress conditions. Values of degree of dominance greater than one indicating that traits were under the control of dominant genetic effect. Based on GCA effects, L1 proved good combiner for early flowering, maturity and short stature; while L6 was a good combiner for NL/P, HD and AY/P while L8 for HD, SG, AY/P and TAW under drought stress condition. Based on SCA effects, Hybrid 20 was found a good SCA combiner for early flowering, early maturity, short stature, higher HD, AY/P and TAW under normal as well as drought stress conditions. It was suggested form our study that the lines L1, L6 and L8 can be further used to develop drought tolerant hybrids for higher yield and L5 × L12 (Hy 20) was proposed for general cultivation in irrigated as well as rainfed areas of Pakistan.

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Section: Discussionmentioning

confidence: 99%

Gene action of achene yield traits in sunflower under drought stress condition

Hasan¹

2021

PAKJAS

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“…It is reported that the crosses CMS-234A x (R-348 x R-274), CMS-17A× (RHA-6D-1×R-272-4), CMS-234A× (KOP-I×RHA-856), CMS-17A×3376-R and ND-2A× (RHA-6D-1 × R-272-4) were good crosses based on the heterosis, SCA effects and has good seed yield/plant. Aghdam et al (2019) reported genetic interpretation of sunflower morphological and physiological traits. In a line × tester study, five CMS lines and four tests were crossed to achieve 20 F1 crosses.…”

Section: Breeding Strategies For Oil and Yield Related Traits In Sunf...mentioning

confidence: 99%

A Jaunt Through Sunflower: From Its Origin to the Different Breeding Approaches for Its Improvement

SAEED

KHALID

AMJAD

2020

Bull. Biol. All. Sci. Res.

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Helianthus annuus, a large annual herb, is grown for its tasty, fatty seeds. It is also used as a meal or silage plant in residential gardens, as well as cow fodder, bird food, and in some industrial applications. A perennial with several flower heads and branches. The domestic sunflower, in contrast, frequently has a single, large inflorescence (flower head) on top of a straightforward stalk. The seeds of the sunflower plant are used to produce sunflower oil. There is a lot of linoleic acid, and it is a crucial fatty acid. Some sunflowers have undergone genetic modification to increase their oleic acid content. These plants generate sunflower oil, which has high oleic acid content. The polyunsaturated fat in this dish is first-rate. High cholesterol and cardiovascular disease are treated and prevented with sunflower oil. Furthermore, despite the lack of scientific evidence to back up these claims, it is said to treat eczema and a number of other ailments.

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Combining ability of some sunflower parental lines in both normal and drought stress conditions

Siahbidi

Rezaeizad

Ghaffari

2022

Helia

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General and specific combining abilities of three cytoplasmic male sterile and four restorer lines of sunflower were studied in a randomized complete block design with three replications under normal irrigation and drought stress conditions in Eslamabad-e-Gharb, Iran during two growing season (2019 and 2020). Drought stress reduced seed yield, oil yield, thousand seeds weight and head diameter by 21.9%, 18.1%, 14.3% and 11.5%, respectively. Line × tester analysis indicated that the effect of lines was significant for the number of days to flowering, plant height, grain yield and seed oil percentage under both normal and drought stress conditions. The effect of lines was significant for number of days to maturity and number of seeds per head under normal condition and for thousand seeds weight under drought stress condition. Contribution of lines × testers were higher than the variances of lines or testers for of most of all the studied traits indicating the major role of non-additive effects on expression of theses traits. R131 was differentiated with the highest positive general combining ability for grain and oil yield in both normal and drought stress conditions. Among the testers, AGK32 and AF81-222 had the highest general combining ability for grain yield under normal and stressed conditions, respectively. R131×AGK38, with grain yields of 4414 and 3457 kg ha-1 under normal and drought stress conditions respectively, had the highest specific combining ability for grain and oil yield under both conditions. The results of this study showed that the genetic materials and environmental conditions can affect the nature of gene effect and combining ability of sunflower parent lines and crosses.

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Genetic Analysis of Morpho-Physiological Characteristics of Sunflower Under Stress and Non-Stress Drought Conditions

Cited by 3 publications

References 28 publications

Gene action of achene yield traits in sunflower under drought stress condition

Gene action of achene yield traits in sunflower under drought stress condition

A Jaunt Through Sunflower: From Its Origin to the Different Breeding Approaches for Its Improvement

Combining ability of some sunflower parental lines in both normal and drought stress conditions

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